4311378655 has 4 divisors (see below), whose sum is σ = 5173654392. Its totient is φ = 3449102920.

The previous prime is 4311378607. The next prime is 4311378689. The reversal of 4311378655 is 5568731134.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4311378655 - 2¹⁵ = 4311345887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431137861 + ... + 431137870.

It is an arithmetic number, because the mean of its divisors is an integer number (1293413598).

Almost surely, 2^4311378655 is an apocalyptic number.

4311378655 is a deficient number, since it is larger than the sum of its proper divisors (862275737).

4311378655 is an equidigital number, since it uses as much as digits as its factorization.

4311378655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862275736.

The product of its digits is 302400, while the sum is 43.

The square root of 4311378655 is about 65661.0893528275. The cubic root of 4311378655 is about 1627.5664257147.

The spelling of 4311378655 in words is "four billion, three hundred eleven million, three hundred seventy-eight thousand, six hundred fifty-five".